434340239 has 2 divisors, whose sum is σ = 434340240. Its totient is φ = 434340238.

The previous prime is 434340229. The next prime is 434340251. The reversal of 434340239 is 932043434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434340239 - 2¹⁶ = 434274703 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434340229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217170119 + 217170120.

It is an arithmetic number, because the mean of its divisors is an integer number (217170120).

Almost surely, 2^434340239 is an apocalyptic number.

434340239 is a deficient number, since it is larger than the sum of its proper divisors (1).

434340239 is an equidigital number, since it uses as much as digits as its factorization.

434340239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 434340239 is about 20840.8310534873. The cubic root of 434340239 is about 757.3152262749.

The spelling of 434340239 in words is "four hundred thirty-four million, three hundred forty thousand, two hundred thirty-nine".